Help diagnose this gnarly noise from my engine (video link)
07-12-2013, 11:29 AM
#18
Banned
Thread Starter
Update.
the alternator shaft is stripped and not serviceable. The mechanic seems to think the pulley wheels were making the noise and not a bearing. There was no evidence of the fan hitting the shroud and all the bearings look good.
So his recommendation is a new alternator (reman) in exchange for my core. given the circumstances im ok with that.
what has me worried is why the shaft got messed up to begin with...i dont want the situation to repeat itself... im 100% certain i used the crows foot at 90 degrees and properly torqued that nut to 50nm....
edit. just checked my torque wrench, it is dead on.
maybe i had the thing set to 50 ft lbs? but i cant see how that would damage the shaft either? maybe the mechanic didnt fully diagnose the alternator and just saw the shaft was jacked up, blamed it on that, called it a day, said i needed a reman....
the alternator shaft is stripped and not serviceable. The mechanic seems to think the pulley wheels were making the noise and not a bearing. There was no evidence of the fan hitting the shroud and all the bearings look good.
So his recommendation is a new alternator (reman) in exchange for my core. given the circumstances im ok with that.
what has me worried is why the shaft got messed up to begin with...i dont want the situation to repeat itself... im 100% certain i used the crows foot at 90 degrees and properly torqued that nut to 50nm....
edit. just checked my torque wrench, it is dead on.
maybe i had the thing set to 50 ft lbs? but i cant see how that would damage the shaft either? maybe the mechanic didnt fully diagnose the alternator and just saw the shaft was jacked up, blamed it on that, called it a day, said i needed a reman....
Last edited by EMBPilot; 07-12-2013 at 08:19 PM.
07-13-2013, 11:26 PM
#19
Banned
Thread Starter
hopped on the train today to take the 2 hour train ride north and retrieve my alternator from where my car is...
long story short. i get to Quads place where my car is in his garage. call the shop that said theyd have everything done friday... they told me they were unable to finish it.
the bearing in the fan hub was frozen. and according to the tech was noisy, needed to be changed, but was stuck. so they had to order a new fan bearing. took the train back home after beers... alternator should now be done on monday.
what's frustrating the hell out of me is chasing these people for information. my alternator was dropped off at 10am friday april 5th. i called them twice a day on 9th & 10th, and never even got a single phone call back, or any information about it until friday the 12th. when they told me "they were just getting to looking at it". ive done a pretty good job keeping my cool but my rope is starting to get short.
i guess im glad they are changing the fan bearing though. but had this happened and the car was in my garage my approach to the entire situation would have been much different, i would have handled everything myself rather than just dumping it off at a p-car indy... it would have been far less annoying.
i said "so was it the fan bearing or the alternator making the noise?" he said, "it was def the alternator" (even though the other guy said it was the pulleys), but "the fan bearing still didnt sound right and needed to be changed"... uh ok...
remember when we cut the alternator belt, the noise completely went away... whatever, id just like my **** back....
long story short. i get to Quads place where my car is in his garage. call the shop that said theyd have everything done friday... they told me they were unable to finish it.
the bearing in the fan hub was frozen. and according to the tech was noisy, needed to be changed, but was stuck. so they had to order a new fan bearing. took the train back home after beers... alternator should now be done on monday.
what's frustrating the hell out of me is chasing these people for information. my alternator was dropped off at 10am friday april 5th. i called them twice a day on 9th & 10th, and never even got a single phone call back, or any information about it until friday the 12th. when they told me "they were just getting to looking at it". ive done a pretty good job keeping my cool but my rope is starting to get short.
i guess im glad they are changing the fan bearing though. but had this happened and the car was in my garage my approach to the entire situation would have been much different, i would have handled everything myself rather than just dumping it off at a p-car indy... it would have been far less annoying.
i said "so was it the fan bearing or the alternator making the noise?" he said, "it was def the alternator" (even though the other guy said it was the pulleys), but "the fan bearing still didnt sound right and needed to be changed"... uh ok...
remember when we cut the alternator belt, the noise completely went away... whatever, id just like my **** back....
Last edited by EMBPilot; 07-14-2013 at 03:11 PM.
07-15-2013, 04:59 AM
#20
Rennlist Member
Kevin,
Your patience has been tested and all these repair issues will be behind you soon. How about a month on "no mods" and some nice drives instead. Just for clarification, the month is July!
Mark
07-15-2013, 07:19 PM
#22
Banned
Thread Starter
My alternator was supposed to be done today. After more logistical gymnastics regarding transportation, here I am without my alternator... Again. Shop said they were sent the wrong part, and that "when they installed the new bearing it was making noise", and that "it'll be done tomorrow" lol
07-15-2013, 10:16 PM
#26
Rennlist Member
The bearing itself isn't. He is likely referring to the bearing and hub which are sold as an assembly. But why would a new one be noisy...off the car and unloaded, how is he determining that.
07-15-2013, 10:30 PM
#27
Banned
Thread Starter
No. He was pretty clear that "the bearing supplier" sent the wrong bearing and when they installed it "it made noise" and " wasn't right". That they were sent the "wrong part". Those were their exact words. So now I'm suspecting tomorrow will be round 3 of SSDD....
07-15-2013, 10:53 PM
#28
Seared
Rennlist Member
Rennlist Member
As Alex mentioned earlier, the sealed bearing itself is as rare as hen's teeth. That said, I've purchased a few of the fan bearing 'assemblies' from Sunset over the years. I think the price ranges from $100 - $140, and for that you get the entire piece that presses into the fan. If your shop is claiming that they are replacing the sealed bearing that's within this machined steel 'assembly', I call bull****...
Andreas
07-15-2013, 11:04 PM
#30
Rennlist Member
